Papyrus

Papyrus is a wonderful perennial plant for Florida water gardens. It produces tall stalks of tufted, umbrella-like foliage that make a great backdrop for other plants, and they can also be cut and added to floral arrangements.
Most papyrus plants grow up to 10 feet tall, but smaller forms are available.

Your papyrus will spread over time, and you can make new plants by dividing the clump. Another propagation trick is to bend a stem so that the leaves stay underwater and eventually put out new roots. To keep it from crowding out other plants, keep your papyrus in a container.

It grows best in full or partial sun, and needs consistently wet soil or even standing water.